Replacing the M6800 with an Arduino Nano

After repairing a Stars machine (Stern, 1978), I started thinking about how I could improve the rules of the game. Stars is fun, but it only has two goals (drop targets & lighting stars) and it doesn't take long before it starts…

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Hardware

Interfacing the Arduino Nano to the MPU is really easy using the J5 connector on the board. The J5 connector is at the top of the board and it was originally meant as a diagnostic port. It contains access to all the…

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